CN114289822A - Control method for preventing adhesion after cutting of casting blank - Google Patents
Control method for preventing adhesion after cutting of casting blank Download PDFInfo
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- CN114289822A CN114289822A CN202111562720.3A CN202111562720A CN114289822A CN 114289822 A CN114289822 A CN 114289822A CN 202111562720 A CN202111562720 A CN 202111562720A CN 114289822 A CN114289822 A CN 114289822A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides a control method for preventing adhesion after cutting of a casting blank, which comprises the steps of obtaining physical information of the casting blank to be cut through a control system to determine control parameters of a cutting machine; acquiring a real-time length value D of a produced casting blank and a length value Da of the casting blank during cutting through the control system, and determining the cutting completion state of the casting blank according to the relation between the actual travel distance value Dc of the cutting machine and the distance value L of the section casting blank; when Dc is larger than L, the control system judges that the casting blank is completely cut off, the control system sends a transfer instruction to the roller way to transfer the cut casting blank, when the cutting machine continues to run to an actual running distance value Dc which is larger than P, a cutting end limit signal is fed back to the control system, the control system receives and sends out a limit signal to the cutting machine, at the moment, the cutting of the casting blank is finished, and the cutting machine returns to an initial position. By using the method, the phenomenon that the casting blanks are adhered to each other after cutting can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of metallurgical control, in particular to a control method for preventing adhesion during cutting of a casting blank.
Background
At present, in the continuous casting production of square billets, most production lines use a flame cutting machine to cut the casting billets with fixed length, wherein the structural forms of cylinder clamping, inclined guide rail swinging cutting and cylinder returning are more.
When the cutting machine works, a pneumatic clamping device is used for clamping a casting blank, a cutting gun is driven by the traveling casting blank to synchronously advance, and the cutting machine travels along an inclined guide rail and simultaneously swings transversely to cut. When the stop block of the cutting machine triggers the cutting end point to limit, the clamping cylinder releases to finish cutting, the roller way starts to convey away the casting blank after cutting, meanwhile, the cutting machine is pushed to return by the return cylinder, and the cutting gun swings back to the cutting starting position.
However, in practical use, the conventional cutting gun has the following problems.
Firstly, the cutting gun is driven to transversely swing and cut along with the increase of the inclination angle of the inclined guide rail, the cutting action is finished when the stop block touches the cutting end point limit, when the casting machine has various section specifications, the swing stroke of the large section corresponding to the cutting gun is large, and the stroke of the small section is small, so the cutting machine end point limit must be adjusted to meet the position of the maximum section, and a buffer space is reserved. When the cutting machine cuts the casting blank, the cutting gun completely cuts off the casting blank, and then the cutting gun needs to continuously move along the inclined guide rail for a section of idle stroke to wait for the terminal limit triggering, and the roller way starts to convey the casting blank after cutting.
Therefore, when the casting blank is cut off until the end point signal arrives, the casting blank at the back of the notch still moves forward at a certain speed, the casting blank cut off at the front of the notch can be conveyed away by the roller way only when the end point signal arrives, the notches of the two sections of casting blanks are contacted again, and at the moment, the temperature at the notch of the casting blank is high, cutting residues are left, and the problem of secondary adhesion of the casting blank is easily caused.
At the moment, manual cutting treatment is needed, but the manual cutting process needs a period of time, so that dry grinding between a roller way and a casting blank is caused, the trip fault of a roller way motor is easily caused, and the production is influenced by the flow blocking accident.
In addition, the prior continuous casting machine mainly adopts multi-flow, has various section specifications in the simultaneous production, causes adhesion events to occur occasionally, influences the service life of roller mechanical and electrical equipment, and brings a large amount of additional work for operators and maintainers.
Disclosure of Invention
In view of the above problems, the present invention aims to provide a method for controlling adhesion prevention after cutting a casting blank, so as to solve the problem of adhesion after cutting the casting blank.
A control method for preventing adhesion after cutting of a casting blank comprises the following steps:
acquiring physical information of a casting blank to be cut through a control system, and determining control parameters of a cutting machine according to the physical information;
cutting a casting blank; acquiring a real-time length value D of a produced casting blank and a length value Da of the casting blank during cutting through the control system; in the cutting process, the cutting completion state of the casting blank is determined according to the relation between the actual travel distance value Dc of the cutting machine and the distance value L of the section casting blank; wherein the content of the first and second substances,
d is a real-time length value of a produced casting blank, Da is a length value of the casting blank during cutting, and Dc is an actual travelling distance value of the cutting machine after cutting starts;
transferring the casting blank; when Dc is larger than L, the control system sends a transfer instruction to the roller way to transfer the section casting blank after judging that the casting blank is completely cut off, the cutting machine continues to operate until the control system receives a cutting end limit signal, at the moment, the cutting stroke of the casting blank is finished, and the cutting machine returns to the initial position; wherein the content of the first and second substances,
when the control system does not receive the cutting end limit signal and the actual travel distance value Dc of the cutting machine is larger than the end limit position P, the control system sends out an alarm prompt, and simultaneously, the control system sends out a cutting end instruction to the cutting machine, the cutting stroke is ended, and the cutting machine returns to the initial position.
Further, it is preferable that the slab physical information includes a slab width Wb.
Further, preferably, the control parameters include a lower swing arm length Hc of a cutting gun of the cutting machine, and a cross arm length Wc of the cutting gun.
In addition, preferably, the lower swing arm and the cross arm are arranged perpendicular to each other.
In addition, preferably, when the lower swing arm of the cutting gun passes through the distance of the casting blank width Wb from the beginning of cutting to complete cutting, the corresponding lifting height of the cross arm of the cutting gun is H; wherein the content of the first and second substances,
and the height value H of the cross arm of the cutting gun is also the height of an inclined guide rail at the position of the cross arm when the cutting is finished, and the distance L traveled by the section casting blank when the casting blank is completely cut off is calculated.
Furthermore, it is preferable that the inclination angle α of the inclined guide is a fixed value.
Furthermore, it is preferable that the crossbar of the cutting gun has a corresponding height H, and the formula H ═ Wc/(Hc/Wb) is satisfied; in the formula, Hc is the lower swing arm length of the cutting gun, Wc is the cross arm length of the cutting gun, and Wb is the casting blank width.
In addition, preferably, the distance L traveled by the section casting blank satisfies the formula L ═ H/tan α; in the formula, H is the corresponding lifting height of the cross arm of the cutting gun, and alpha is the inclination angle of the inclined guide rail.
In addition, preferably, the control system alarms comprise an alarm in a monitoring picture, and the cutting machine alarms in sound and light.
In addition, preferably, the cutting end command is sent to the cutting machine, and a clamping device of the cutting machine receives a signal and releases a clamping.
The control method for finishing the adhesion prevention by utilizing the casting blank cutting has the beneficial technical effects that:
(1) and comparing the actual distance value of the cutting machine during production with the cutting distance corresponding to the section of the casting blank, judging that the casting blank is completely cut off, and starting a roller way to convey the casting blank in time to avoid adhesion accidents.
(2) And comparing the actual distance value of the cutting machine with the end point limiting position value, judging the effectiveness of the end point limiting, and taking the effectiveness as the accident protection of the end point limiting to avoid the cutting machine accident.
(3) The invention can effectively avoid the accidents of the adhesion of the casting blank and the cutting machine, prolong the service life of the related mechanical and electrical equipment and simultaneously reduce the labor intensity of operators and maintainers.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a flow chart of a control method for preventing adhesion during cutting of a casting blank according to the invention;
FIG. 2 is a judgment block diagram of a control method for preventing adhesion after cutting of a casting blank according to the invention;
figure 3 shows a simplified cross-sectional schematic of a cutting machine according to an embodiment of the invention; and the number of the first and second groups,
fig. 4 shows a simplified schematic diagram of the positional relationship of the inclined guide rail and the side surface of a cross-sectional casting blank according to an embodiment of the present invention.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 is a flow chart of a control method for preventing adhesion during cutting of a casting blank according to the invention; FIG. 2 is a judgment block diagram of a control method for preventing adhesion after cutting of a casting blank according to the invention; figure 3 shows a simplified cross-sectional schematic of a cutting machine according to an embodiment of the invention; and fig. 4 shows a simplified schematic diagram of the positional relationship of the inclined guide rail and the side surface of the cross-section casting blank according to the embodiment of the present invention.
As shown in fig. 1, it is a flow chart of the control method for preventing adhesion after cutting of casting blank according to the present invention.
S110, acquiring physical information of a casting blank to be cut through a control system, and determining control parameters of a cutting machine according to the physical information;
specifically, the casting blank physical information includes a casting blank width Wb, wherein the casting blank width is known through production process parameters.
Specifically, the control parameters comprise the lower swing arm length Hc of a cutting gun of the cutting machine and the cross arm length Wc of the cutting gun, wherein the lower swing arm length and the cross arm length are known according to the equipment size.
S120, cutting a casting blank; acquiring a real-time length value D of a produced casting blank and a length value Da of the casting blank during cutting through a control system; in the cutting process, the cutting completion state of the casting blank is determined according to the relation between the actual travel distance value Dc of the cutting machine and the distance value L of the section casting blank; wherein the content of the first and second substances,
d is a real-time length value of a produced casting blank, Da is a length value of the casting blank during cutting, and Dc is an actual travelling distance value of the cutting machine after cutting starts;
specifically, when the lower swing arm of the cutting gun passes through the distance of the width Wb of the casting blank from the beginning to the end of cutting, the cross arm of the cutting gun correspondingly rises to a height H; the height value H of the cross arm of the cutting gun is also the height of the inclined guide rail at the position of the cross arm when the cutting is finished, and the distance L traveled by the section casting blank when the cutting of the casting blank is finished is calculated.
More specifically, the lifting height of the cross arm of the cutting gun is H, and the formula H is Wc/(Hc/Wb); in the formula, Hc is the lower swing arm length of the cutting gun, Wc is the cross arm length of the cutting gun, and Wb is the casting blank width.
More specifically, the distance L traveled by the section casting blank satisfies the formula L ═ H/tan α; in the formula, H is the corresponding lifting height of the cross arm of the cutting gun, and alpha is the inclination angle of the inclined guide rail.
More specifically, the lower swing arm and the cross arm are perpendicular to each other.
More specifically, the inclination angle α of the inclined rail is a fixed value.
S130, transferring a casting blank; when Dc is larger than L, the control system sends a transfer instruction to the roller way to transfer the section casting blank after judging that the casting blank is completely cut off, the cutting machine continues to operate until the control system receives a cutting end limit signal, at the moment, the cutting stroke of the casting blank is finished, and the cutting machine returns to the initial position; wherein the content of the first and second substances,
when the control system does not receive the cutting end limiting signal and the actual traveling distance value Dc of the cutting machine is larger than the end limiting position P, the control system sends out an alarm prompt, and meanwhile, the control system sends out a cutting ending instruction to the cutting machine, the cutting stroke is ended, and the cutting machine returns to the initial position.
Specifically, when Dc is larger than L, the swing distance of the cutting gun is judged to be larger than the width Wb of the casting blank, and the casting blank is completely cut off. At the moment, the best time point for starting the roller way is that the casting blank is not completely cut before, and the two casting blanks before and after being cut are contacted and attached again, so that when Dc is larger than L, the system sends a roller way starting command after cutting, and the roller way forwards transports the casting blanks to effectively prevent the casting blanks from being adhered.
Specifically, the alarm of the control system comprises an alarm in a monitoring picture and a sound-light alarm of the cutting machine.
Specifically, a cutting end command is sent to the cutting machine, and a clamping device of the cutting machine receives a signal and releases the clamping.
Next, the steps of the specific embodiment will be described in detail with reference to the judgment block diagram of the control method for preventing adhesion after cutting a cast slab shown in fig. 2.
Firstly, fig. 3 is a simplified cross-sectional schematic diagram of a cutting machine according to an embodiment of the present invention, fig. 4 is a simplified schematic diagram of a positional relationship between a diagonal rail and a side surface of a cross-sectional casting blank according to an embodiment of the present invention, and fig. 3 and 4 show a positional relationship between related parameters of a casting blank and the cutting machine, including a casting blank width Wb, obtained by a control system; the length of the lower swing arm of the cutting gun is the height Hc from the swing center shaft point to the gun nozzle of the cutting gun; the length of the cross arm of the cutting gun is the width Wc from the center shaft point to the inclined guide rail; the corresponding lifting height of the cutting gun cross arm is H; the inclination angle alpha of the inclined guide rail; and when the casting blank is completely cut off, the distance L traveled by the casting blank on the cross section is obtained.
Specifically, the real-time length value D of the currently produced casting blank; when the system sends out a cutting command, the length value Da of the current casting blank is obtained; the difference value of the real-time length value D of the casting blank and the length value Da of the current casting blank is the actual travel distance value Dc of the cutting machine; the cutting end limit is opposite to the cutting starting position P.
Specifically, casting blank section width data Wb is obtained according to production information of a control system; and obtaining the height Hc of the lower swing arm of the cutting gun, the width Wc of the cross arm of the cutting gun, the inclination angle value alpha of the inclined guide rail and the end point limit position P of the cutting machine according to the equipment information of the cutting machine.
Under the condition of the current casting blank section, the distance which the cutting machine needs to follow the casting blank to walk when completely cutting off the casting blank is calculated, when the cutting gun cuts off the casting blank, the height of the inclined guide rail where the cross arm is located is H ═ Wc/(Hc/Wb), and at the moment, the distance L which the section casting blank walks is H/tan alpha.
According to a real-time length value D of a casting blank provided by a tracking main system in a control system; taking the length value at the beginning of cutting as a starting point value, namely the length value Da of the current casting blank when a cutting command is sent out; and calculating the actual distance value traveled by the cutting machine in real time, namely the actual travel distance value Dc of the cutting machine.
After cutting is started, the actual distance value Dc of the cutting machine is equal to D-Da, if Dc is larger than L, the cutting machine is judged to completely cut off the casting blank, and at the moment, the control system sends a starting command to the roller way to convey the cut casting blank; and if Dc is less than L, judging that the casting blank is not completely cut off by the cutting machine, and returning the control system to the step to continue cutting.
And then, the control system continuously monitors the actual distance Dc of the cutting machine, and when the cutting machine receives a cutting end limit signal under the condition that Dc is less than P, the control system sends a cutting end command, the cutting machine loosens the clamp and returns to the initial position, and the process of finishing anti-adhesion by one-time cutting is finished.
If the control system does not receive a cutting end point limiting signal all the time after cutting begins and the actual distance Dc of the cutting machine is larger than P, the control system judges that the end point limiting is invalid, at the moment, the control system gives an alarm in a monitoring picture, meanwhile, the cutting machine gives out an audible and visual alarm, the control system sends out a cutting ending command to a clamping device of the cutting machine, the clamping device is loosened, and the process of finishing anti-adhesion of one-time cutting is finished.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the control method for preventing the adhesion of the cut casting blanks, the actual distance value of the cutting machine during production is compared with the cutting distance corresponding to the section of the casting blanks, the casting blanks are judged to be completely cut off, the roller way is started in time to convey the casting blanks, and the adhesion accidents are avoided;
2. according to the control method for preventing the adhesion of the cut casting blank, the effectiveness of the end point limit is judged according to the comparison between the actual distance value of the cutting machine and the end point limit position value, and the effectiveness is used as the accident protection of the end point limit to avoid the cutting machine accidents.
3. The control method for preventing the adhesion of the cut casting blanks can effectively avoid the accidents of the adhesion of the casting blanks and the accidents of the cutting machine, prolong the service life of related mechanical and electrical equipment, and simultaneously reduce the labor intensity of operators and maintainers.
The control method for finishing the adhesion prevention in the cutting of the casting blank according to the present invention is described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications can be made to the method for controlling the completion of the anti-adhesion of the ingot cutting proposed by the present invention without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (10)
1. A control method for preventing adhesion after cutting of a casting blank comprises the following steps:
acquiring physical information of a casting blank to be cut through a control system, and determining control parameters of a cutting machine according to the physical information;
cutting a casting blank; acquiring a real-time length value D of a produced casting blank and a length value Da of the casting blank during cutting through the control system; in the cutting process, the cutting completion state of the casting blank is determined according to the relation between the actual travel distance value Dc of the cutting machine and the distance value L of the section casting blank; in the formula Dc-Da, D is the real-time length value of a produced casting blank, Da is the length value of the casting blank during cutting, and Dc is the actual travel distance value of the cutting machine after cutting starts;
transferring the casting blank; when Dc is larger than L, the control system sends a transfer instruction to the roller way to transfer the section casting blank after judging that the casting blank is completely cut off, the cutting machine continues to operate until the control system receives a cutting end limit signal, at the moment, the cutting stroke of the casting blank is finished, and the cutting machine returns to the initial position; wherein the content of the first and second substances,
when the control system does not receive the cutting end limit signal and the actual travel distance value Dc of the cutting machine is larger than the end limit position P, the control system sends out an alarm prompt, and simultaneously, the control system sends out a cutting end instruction to the cutting machine, the cutting stroke is ended, and the cutting machine returns to the initial position.
2. The method for controlling completion of adhesion prevention in slab cutting according to claim 1,
the casting blank physical information includes a casting blank width Wb.
3. The method for controlling completion of adhesion prevention in slab cutting according to claim 2,
the control parameters comprise the arm length Hc of a lower swing arm of a cutting gun of the cutting machine and the arm length Wc of a cross arm of the cutting gun.
4. The method for controlling completion of adhesion prevention in slab cutting according to claim 3,
the lower swing arm and the cross arm are perpendicular to each other.
5. The method for controlling completion of adhesion prevention in slab cutting according to claim 3,
when the lower swing arm of the cutting gun passes through the distance of the width Wb of the casting blank from the beginning to the end of cutting, the lifting height of the cross arm of the cutting gun is H; wherein the content of the first and second substances,
and the height value H of the cross arm of the cutting gun is also the height of an inclined guide rail at the position of the cross arm when the cutting is finished, and the distance L traveled by the section casting blank when the casting blank is completely cut off is calculated.
6. The method for controlling completion of adhesion prevention in slab cutting according to claim 5,
the inclination angle alpha of the inclined guide rail is a fixed value.
7. The method for controlling completion of adhesion prevention in slab cutting according to claim 6,
the corresponding lifting height of a cross arm of the cutting gun is H, and the formula H is Wc/(Hc/Wb);
in the formula, Hc is the lower swing arm length of the cutting gun, Wc is the cross arm length of the cutting gun, and Wb is the casting blank width.
8. The method for controlling completion of adhesion prevention in slab cutting according to claim 7,
the distance L traveled by the section casting blank meets the formula L which is H/tan alpha;
in the formula, H is the corresponding lifting height of the cross arm of the cutting gun, and alpha is the inclination angle of the inclined guide rail.
9. The method for controlling completion of adhesion prevention in slab cutting according to claim 1,
the control system alarms in a monitoring picture, and the cutting machine alarms in sound and light.
10. The method for controlling completion of adhesion prevention in slab cutting according to claim 1,
and the cutting end command is sent to the cutting machine, and a clamping device of the cutting machine receives a signal and releases the clamping.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111562720.3A CN114289822B (en) | 2021-12-20 | 2021-12-20 | Control method for preventing adhesion of casting blank cutting completion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111562720.3A CN114289822B (en) | 2021-12-20 | 2021-12-20 | Control method for preventing adhesion of casting blank cutting completion |
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| CN114289822A true CN114289822A (en) | 2022-04-08 |
| CN114289822B CN114289822B (en) | 2023-05-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047204A (en) * | 1999-08-03 | 2001-02-20 | Nkk Corp | Method for cutting off cast slab |
| JP2001198657A (en) * | 2000-01-13 | 2001-07-24 | Nisshin Steel Co Ltd | Slab cutting method of continuous casting machine |
| CN101391264A (en) * | 2007-09-19 | 2009-03-25 | 中冶赛迪工程技术股份有限公司 | Technique method of thin middle plate continuous casting and rolling production |
| CN102328041A (en) * | 2011-07-12 | 2012-01-25 | 陈寅明 | Continuous casting cutting slag cleaning method and slag cleaning device thereof |
| CN110560651A (en) * | 2019-09-16 | 2019-12-13 | 中冶南方连铸技术工程有限责任公司 | Method for judging cutting-off of continuous casting billet |
| CN113579188A (en) * | 2021-07-28 | 2021-11-02 | 北京首钢股份有限公司 | Method and system for detecting cutting of plate blank |
-
2021
- 2021-12-20 CN CN202111562720.3A patent/CN114289822B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047204A (en) * | 1999-08-03 | 2001-02-20 | Nkk Corp | Method for cutting off cast slab |
| JP2001198657A (en) * | 2000-01-13 | 2001-07-24 | Nisshin Steel Co Ltd | Slab cutting method of continuous casting machine |
| CN101391264A (en) * | 2007-09-19 | 2009-03-25 | 中冶赛迪工程技术股份有限公司 | Technique method of thin middle plate continuous casting and rolling production |
| CN102328041A (en) * | 2011-07-12 | 2012-01-25 | 陈寅明 | Continuous casting cutting slag cleaning method and slag cleaning device thereof |
| CN110560651A (en) * | 2019-09-16 | 2019-12-13 | 中冶南方连铸技术工程有限责任公司 | Method for judging cutting-off of continuous casting billet |
| CN113579188A (en) * | 2021-07-28 | 2021-11-02 | 北京首钢股份有限公司 | Method and system for detecting cutting of plate blank |
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